code: def test_features():
      features = Features()
      print(features)
      assert "CUDA" in features
      assert len(features) >= 20
  
file_path: mxnet/tests/python/unittest/test_runtime.py
imports: import mxnet
  import sys
  from mxnet.runtime import *
  from mxnet.base import MXNetError
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: test_features() without return types